Automatic mud-drum for boilers.



1MP. SHREVE.

AUTOMATIC MUD DRUM POR BOILERS.

APPLIOATION FILED MAY 6, 1913.

Patented 0013. 7, 1913.

\Z? L7 l a y vz nomme.

E2 EAENC ALEXANDER FRANKLIN SHREVE, OF HOISINGTON, KANSAS, ASSIGNOR 0F ONE-HALE! T0 GII'JIBIER'Ly SETTE, 0F HOISNGTON, KANSAS.

AUTOMATIC MUD-DRUM FOR BOLERS.

Specification of Letters Patent.

Patented (Eet. "Z, 1213.

Application ined May e, 1913. serial No. 765.776.

T 0 all who-m t may conce/rn Bc it known that I, ALEXANDER F. SHREVE, a citizen of the United States, and a resident ot' Hoisington, in the county of Barton and State of Kansas, have made certain new and useful Improvements in Automatic Mud-Drums for Boilers, of which the following is a specification.

My invention relates to mud drums for boilers, my particular purpose being to provide a mud drum so constructed and arranged as to be automatic in the sense that it operates continuously and positively in the removal of mud or sediments from the boiler.

My invention further relates to provision of means for removing the mud or sediment from the muti drum.

My invention also comprehends certain details of construction. for improving the general eiiiciency-of mud drums and parts associated therewith.

Reference is made to the accompanying drawings forming a part of this specification and in which like letters indicate like parts.

Figuiie l is a fragmentary view partly in side elevation and partly in section showing a portable boiler used in connection with my improved mud drum. Fig. 2 is a section on the line 2 2 of Fig. 1 looking in the direction of the arrow. F ig. 3 isv a central vertical section through the mud drum. Fig. 4 is a vertical section on the line 4 4 of Fic. 3 looking in the direction of the arrow. 5 is a section somewhat similar to F ig. 4, but showing certain movable parts as occupying dierent ositions from those indicated in Fig. 4. fig. 6 is a detail showing in perspective one of the baiie plates carried by the revoluble shaft.

A boiler shell is shown at 7 and a steam dome at 8. Located within` the boiler shell are boiler flues 9. The inner wall of the fire box is shown at 10, and the outer wall of the same at 11, there being between these two walls a water space 12. This water space communicates with the general water space.

13 of the boiler.

My improved mud drum is shown at 14, and may be conveniently located at one side of the re box. A mud ring is shown at l5 and encircles the lowest portion of the boiler, and communicates therewith by a number of necks 16. The mud ring is connected by another neck 17 with a valve 18, the latter being connected by a neck 19 with the mud drum 14, as will be understood from Fig 1.

The` mud drum 14 carries two discharge valves 20, 21, which may be adjusted with great accuracy so as to permit a trivial es cape of steam or water. The mud drum is further provided. with two hand operated valves 22,y 23, for discharging' mud, sediment. and water.

Arevoluble shaft 24 threaded externally is located axially within the mud drum 14, and at one of its ends engages a bearing 25, while adjacent its opposite end it eX- tends through a stuttng box 2G and is provided with a hand crank 27. The shaft 24 carries a number of battle plates 28 secured upon it byaid of its threaded surfauce. Each battle plate 28 is provided with two lips 29, 31, and with a hole 30, this hole facilitating the introduction of the shaft 24 through the baffle plates.

A quantity of mudv or sediment, accumulated within the drum 14, is shown at 32. Grate bars are shown at 33, 34, the bar 33 being a plane bar and the bars 34 being of articulate construction.

The operation of my device is as follows :wThe parts being assembled and arranged as described, and steam being generated in the boiler, the mud and sediment of the water tends to settle in the lowermcst portion of the boiler. 1f, now, the veilves 20, 21, be vented slightly so as topermit a slow escape of water, a current or draft of water is thus set up from the lower portion of the boiler into the drum, and this insures the removal of sediment and mud from the boiler, and its deposit within the drum. rlhe lips 29 servo to promote equal distribution of the mud or sediment as deposited within the drum, as may be understood from Fig. 3. The operator by grasping the hand crank 27 and rotating the shaft 24, causes the I battle plates 28 to stir the mass of mud or sediment 32, and by aid of the hetV water within the mud drum, the mass of material 32 is soon rendered fluent, if it is not already so. This being done, the hand cra-nk 27, is left in such position (see Fig. 5) that the lips 29 of the battles 28 extend down wardly. There is now a clear space underneath the baies 28 from one end of the drum to the other. The valves 22, 23, beine row opened, all mud and sediment is fore wadly through these valves. 1 nol. 4hat .91 noi/enea comparatively little outflow of Water through the Valves 20, 2 is suiheient to promote enough draft or current to eontinuously remove the sediment ormud from the 5 boiler into the mud drum. ln fact, valves 2G, 2l, need not be opened except in the sense that they promote slow leakage. The Waste of hot Water from this ease, therefore,

becomes negligible. lily use of the baille plates 2S, the deposit within the mud valve is distributed equally throughout the length of the mud drum. Except ttor tie baille platea there would be a. tendenej;7 for the material to accumulate at the ends of the mud drum, and by doing this the valves 2G,

21, might become more or less obstructed.

The shape of 'the lips 3l Causes the material to be thoroughly stirred up when the shaft is rotated and the form of the lips 29, as indicated, is to control the distribution or equalize the quantitiesn'f the inud or sediment as deposited.

l. do not limit myself tothe precise arrangement shown, as v arialglons may be made therein 'Without departing troni the spirit of my invention.

l claim l. A device of the character'described com prising a boiler, a inud ring communicating therewith, a mud drum connected with said mud ring for receiving; inud therefrom,

means .for venting said mud drui'n in order' to Convey' into said mud drum material depoeited. in said mud ring, and means for open le ald drinn in order to discharge said material t iereiiom.

2. ln a mud drum the Combination a hollen" member provided with discharge Valves for Water, and also discharge Val-NeA 'for mud or sa-:adinientnl a revoluble shaft exn tending;- into said hollow zieinber, and baille mounted upon said reveluhle im: :ire

'e nach, by addressing the ommiseener of Fiat-ents,

and movable relatively te hollow member.

3. The combination of a mud drinn haw in the general form or a longitudinal eylin er, a pipe connected with said cylinder midway between the ends thereof in order to deliver into said mud drinn deposits oi mud or sediment, a plurality of baille plates 5o located Within said (li-urn, each plate 3rovided with a lip bent to an angle relatively to the general axis ot said drain the bailie plates in halt of said eylinder having 'l said lips bent in one direction and the o plates in the other half of said cylinder ine* their said lips bent in anether dire v 'for the purpose ot' promoting equality distribution of material deposit d Within said cylinder, means for venting said cylinder in order to draw thereintoinaterial ated in a boiler, and means oropening sain ejf nder in orde-r to discharge material.

4:. il. .mud drum comprising; le; f hollow member having 'the ,e a Cylindere a revel ble shui? ally into said hollow member, baiie plates mounted shaft, each battle plai." a lip having a coin;` said baille plates bei p straight edges said lips are i, stantially in aveoininon plane tnat uil en said shaftis turned into a predetermined angular posiuion, a clear sp ee will be formed at the bottoni o Cylinder, and means for Venting said zjy'lirder the bottom 'th-creer" t material {eposited with.i

l'l-llmlt Fltfllllllll' lfitnesses lll/'Auron Harmsen, Seton C, Kenton. 

